To provide a power supply device that supplies a tire sensor with electric power, with simple configuration.SOLUTION: A power supply device 1 capable of supplying electric power to a tire sensor 2 which is disposed in a tire and can measure a physical quantity concerning the tire, comprises: a magnetic field generation unit 11 provided in the tire or in a wheel mounted with the tire; a coil 12 for power generation buried inside the tire while being wound around in a circumferential direction of the tire; and a connection portion 13 which is provided on an inner side surface of the tire and can be electrically connected to the tire sensor, wherein the coil 12 for power generation is electrically connected to the connection portion 13, and induction current generated in the coil 12 for power generation resulting from change in magnetic flux densities of a magnetic field generated from the magnetic field generation unit 11 is used to supply electric power to the tire sensor 2.SELECTED DRAWING: Figure 1
【課題】簡単な構成により、タイヤセンサに電力を供給する給電装置を提供する。【解決手段】タイヤの内部に配置されタイヤに関する物理量を計測可能なタイヤセンサ2に電力を供給可能な給電装置1は、タイヤまたはタイヤが取り付けられた車輪に設けられた磁場発生部11と、タイヤの周方向に巻き回された状態で、タイヤの内部に埋設された発電用コイル12と、タイヤの内側面に設けられ、タイヤセンサと電気的に接続可能な接続部13と、を有し、発電用コイル12と接続部13とは電気的に接続されており、磁場発生部11からの磁場の磁束密度が変化することにより発電用コイル12に発生した誘導電流をタイヤセンサ2への電力の供給に用いる。【選択図】図1
POWER SUPPLY DEVICE AND TIRE SENSOR
給電装置およびタイヤセンサ
04.11.2022
Patent
Elektronische Ressource
Japanisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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